Home / 889,290.83-1,333,931.78-215,372.12

Finding the Fourth Proportional to 889,290.83, 1,333,931.78 and 215,372.12

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Solution

The fourth proportional to 889,290.83, 1,333,931.78 and 215,372.12 is: 323,057.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,290.83 : 1,333,931.78 = 215,372.12 : x
  2. Step 2: Convert to fraction form
    889,290.83/1,333,931.78 = 215,372.12/x
  3. Step 3: Cross multiply
    889,290.83x = 1,333,931.78 × 215,372.12
  4. Step 4: Simplify right side
    889,290.83x = 287,291,707,647.45
  5. Step 5: Solve for x
    x = 287,291,707,647.45/889,290.83
  6. Step 6: Final answer
    x = 323,057.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.